Mechanical movement



Dec. 1 6, 1930. G. G. LEMONS 1,784,842

MECHANICAL MOVEMENT Filed June 25, 1929 4 Sheets-Sheet l In ven to)" 5.607? a: G Lava/rs.

Abba ey G. G. LEMONS MECHANICAL MOVEMENT Dec. 16, 1930.

Filed June 25, 1929 4 Sheets-Sheet 3 In venlior Gzsofials 6.1:E/70/Y5.

y A bborney Dec. 16, 1930. e. G. LEMONS MECHANiCAL MOVEMENT Filed Julie 25, 1929 4 Sheets-Sheet 4 In v enbor' 6. Lama/vs,

Abborney Patented Dec. 16, 1930 warren GEORGE G. LEMONS, OF LOitlG BEACH, CALIFORNIA MECHANICAL MOVEMENT Application filed June 25,

This invention relates to a mechanical movement in which rotary motion is transferred to a reciprocating movement. This is accomplished by means of an elongated internal gear which meshes with a driving pinion, said pinion traversing the entire length of the internal gear. I

An object of my invention is to provide a mechanical movement of the character stated in which the elongated internal gear and the driving pinion are positively held in engagement at all times so that there is no danger of the gears unmeshing due to a severe strain upon either one of said gears.

Another object is to provide a novel control whereby the internal gear is moved from side to side so that the teeth thereof are constantly in mesh with'the'driving pinion.

Other objects, advantages, and features of 29 invention may appear from the accompanying drawing, the subjoined detailed descrip tion, and the appended claims.

In the drawing:

Figure 1 is a front elevation of my novel mechanical movement.

Figure 2 is an end view of the same.

Figure 3 is a front View of the internal gear and driving pinion.

Figure 4 is an end view of the internal gear.

Figure 5 is a diagrammatic view taken from the rear of the machine and showing the reduction gearing.

Referring more particularly to the drawing, the numeral 1 indicates the frame of my machine in which the mechanical movement is mounted. An electric, air, or other rotary motor 2 is mounted on or adjacent to the frame 1. A pulley 3 is secured to a shaft 4 journaled in the frame 1. The pulley 3 is driven from the motor 2 by means of a belt 5 or any other suitable drive. A gear 6 on the shaft 4 meshes with a gear 7 on a shaft 8,

said shaft being also journaled in the frame 1. A gear 9 on the shaft 8 meshes with a gear 10 on the drive shaft 11, said drive shaft being also journaled in the frame 1.

The gearing just described is merely one of a number of different reduction gearings which might be placed between the first shaft 1929. Serial No. 373,615.

driven by the motor to the last shaft which drives the mechanical movement. In other words, the gearing may readily be varied so as to'vary the relative speeds of the shafts.

A drive pinion 12 is secured to the shaft 11 and this. pinion meshes with an internal elongated gear 13 which gear is out in a head 14. The head 14 is slidably and reciprocally mounted onguide-ways 15, 15 secured to the frame 1. It is evident that as the pinion 12 rotates it will move the head 14 upwardly and downwardly depending upon which side of the internalelongated gear 13 it is meshing. In other words, the head 14 as it moves under the urge of the pinion 12 will cause the pinion to traverse first one side of the elongated gear 13 and then the other, the pinion 12 traveling over the upper and lower arcuate sections of the gear in order to move from one side of said internal gear to the other. 'As the pinion 12 passes over the arcuate sections of the internal gear 13 it would tend to force the head 14 from one side to the other but this would not be positive enough. Therefore, I have provided a timed mechanical movement whereby the head is moved horizontally from one side to the other thereby positively holding the gears 12, 13 in mesh at all times.

The guide-ways 15 are slidably mounted in the frame 1 and they are moved from side to side in the following manner: A gear 16 is securedv to the shaft 11 and meshes with the. gear 17 which is journaled on a plate 18 secured to the frame 1. A box cam 19 is cut in the gear 17 and a finger 20 traverses the box cam 19. A link 21 is connected to the end of the finger 20 and is pivoted to an oscillating wheel 22. The wheel 22 is also j ournaled on the plate 18. A second wheel 23 is journaled'on the other end of the plate 18 and the wheels 22, 23 are connected by a pitman 24. 7

Thus it will be seen that as the gear 17 rotates the finger 20 following the b0); cam 19 will rock the wheels 22, 23 back and forth. The rocking ofthe two wheels 22, 23 serves to move the frame 15 back and forth at a horizontal plane so as to properly mesh the gears 12, 13 at all times.

The movement of the guide-ways is accomplished in the following manner: A companion wheel is mounted rearwardly of each of the wheels 22, 23 and oscillates with said lastnamed wheels. A pin 26 projects from the companion wheels 25 and extends through an arm 27. The construction of the following arms, wheels, links, and so forth, is identical for both sides of the device so I will only describe the one. o

The arm 27 is pivoted, as at 28, to the frame 1 of the machine and is pivoted at the lower end thereof to a plunger 29, which plunger is secured to the guide-way 15 and is journaled in the frame 1. At the upper end the arm 27 is pivoted with a lost motion connection, as shown at 30, to a link 31. The link 31 is pivotally mounted, as at 32, to a bracket secured to the frame 1. At its upper end the link 31 is pivotally secured to a plunger 33 which is secured to the upper end of the guide-ways 15. Thus it will be seen that as the wheels 22, 23 are rocked back and forth through the action of the box cam 19 or any similar mechanical arrangement, that the arm 27 and link 31, will be moved about their pivots to slide the plungers 29, 33 back and forth, and thus move the guide-ways 15, 15 and the head 14'from side to side. This movement is properly timed so that it occurs at the time the pinion 12 is at the top and the bottom of the internal elongated gear 13. i

The mere co-ordination of the movements of the gears 12, 13 is not sufficient. It is sufficient that the pinion 12 shall be positively held in mesh with the gear 13 at all times so that there is no danger of these gears unmeshing under severe strain. I accomplish this by means of dogs 34, 35 which are pivot-.

ally secured to one of the guide-ways 15. A link 36 connects the dogs 34, 35 so that they will move in unison. A second pair of dogs 37, 38 are secured to the other side of the guide-ways 15 and these last named dogs are also connected by a link 39.

The dogs 34, 35, 37, 38 always engage the frame 1 as shown in Figure l but when the guide-ways 15, 15 are moved to the right the left-hand pair of dogs will be substantially horizontal and will engage the frame 1, thus securely holding the guide-ways 15, 15 against movement towards the left. The guide-ways 15, 15 cannot move further to the right under these conditions because of the pinion 12 and because the shaft 11 cannot move. The same condition occurs when the guide-ways 15, 15 are moved to the left, then the dogs 37, 38 are horizontal and prevent any movement to the right.

These dogs are tripped back and forth by means of a pair of straps 40, 41 which are secured to the head 14 on the left side thereof and are adapted to engage the inner ends of the dogs 34, 35, respectively. A strap 42 is secured to the right-hand side of the head 14 which is adapted to engage the inner end of the dogs 38 on the downward movement of the head, thus moving the dogs into the position shown in Figure 1. On the upstroke of the head the dogs 37, 38 must be moved into a horizontal position from that shown in Figure 1 and since the inclination of the dogs is upwardly a gear arrangement must be provided.

A gear 43 is journaled on the guide-way 15 and this gear meshes with a second gear 44 which is secured to the dog 37. A lug 45 is adapted to be engaged by a strap 46 on the head 14, thus rotating the gear 43, which in turn rotates the gear 44 in the opposite direction, and thus the dogs 37, 38 will be properly actuated. 1

A connecting rod 46 is pivotally secured to the lower end of the head14 and this connecting rod extends to a cross-head 47 which crossheadreciprocates in guides 48 secured to the frame 1. The cross-head 47 is connected to any desirable apparatus which is to be operated, such as a pump 49. The plunger 50 of the pump 49 is secured to the cross-head 47.

Having described my invention, I claim 1'. In a mechanical. movement comprising a frame, a drive shaft journaled in the frame, drive means connectedv to said driveshaft, a pinion on the drive shaft, a head, an internal elongatedgear in the head, said pinion being meshed with said internal gear, a pair of wheels mounted on the frame, .a pitman connecting said wheels, means on the frame connected in timed relation to said drive shaft and to said wheels whereby said wheels are rocked, guide-ways in which said head is slidably mounted, said guide-ways being slidably mounted in said frame, plungers extending from said guide-ways at the top and bottom thereof, and links connecting said plungers and said wheels whereby the guide-ways are moved from sideto side in the frame;

2. In'am'ec'hanical movement comprising a. frame, a drive shaft journaled in the frame, drive means connected to said drive shaft, a pinion on the drive shaft, a head, an internal elongated gear in the head, said pinion being meshed with said internal gear, a pair of wheels mounted. on the frame, a pitman connecting said wheels, means on the frame connected in timed relation to said drive shaft and to said wheels whereby said wheels are rocked, guide-ways in which said head is slidably mounted, saidguide-ways being slidably mounted in said frame, plungers extending from said guide-ways at the top and bot-. tom thereof, and links connecting said plung-. ers and said wheels whereby the guide-Ways are moved from side to side in the frame, and means locking said guide-ways at either eX- treme position thereof.

3. In a mechanical movement comprising a frame, a drive shaft journaled in the frame, drive means connectedto said drive shaft, a

pinion on the drive shaft, a head, an internal elongated gear in the head, said pinion being meshed with said internal gear, a pair of wheels mounted on the frame, a pitman connecting said wheels, means on the frame connected in timed relation to said drive shaft and to said wheels whereby said wheels are rocked, guide-ways in which said head is slidably mounted, said guide-ways being slidably mounted in said frame, plungers extending from said guide-ways at the top and bottom thereof, and links connecting said plungers and said Wheels whereby the guideways are moved from side to side in the frame, dogs pivotally secured to said guide-ways, said dogs being adapted to engage said frame, a link connecting said dogs, and straps on said head adapted to engage the inner ends of said dogs as said head is moved upwardly and downwardly thereby tripping said dogs to permit side movement of the guide-ways.

4. In a mechanical movement comprising a frame, a drive shaft journaled in the frame, drive means connected to said drive shaft, a pinion on the drive shaft, a head, an internal elongated gear in the head, said pinion being meshed with said internal gear, a pair of wheels mounted on the frame, a pitman connecting said wheels, a gear on the drive shaft, a second gear meshing with the gear on the drive shaft, a box cam in the second gear, a finger adapted to travel in the box cam, a link connecting said finger and one of said wheels whereby said wheels are oscillated in timed relation to the reciprocation of the head, guide-ways in which said head is slidably mounted, said guide-ways being slidably mounted in said frame, plungers extending from said guide-ways at the top and bottom thereof, and links connecting said plungers and said wheels whereby the guideways are moved from side to side in the frame.

5. In a mechanical movement comprising a frame, a drive shaft journaled in the frame, drive means connected to said drive shaft, a pinion on the drive shaft, a head, an internal elongated gear in the head, said pinion being meshed with said internal gear, a pair of wheels mounted on the frame, a pitman connecting said wheels, a gear on the drive shaft, a second gear meshing with the gear on the drive shaft, a box cam in the second gear, a finger adapted to travel in the box cam, a link connecting said finger and one of said wheels whereby said wheels are oscillated in timed relation to the reciprocation of the head, guide-ways in which said head is slidably mounted, said guide-ways being slidably mounted in said frame, plungers extending from said guide-ways at the top and bottom thereof, and links connecting said plungers and said wheels whereby the guide-Ways are moved from side to side in the frame, and

means locking said guideways at either extreme position thereof.

6. In a mechanical movement comprising a frame, a drive shaft journaled in the frame, drive means connected to said drive shaft, a pinion on the drive shaft, a head, an internal elongated gear in the head, said pinion being meshed with said internal gear, a pair of wheels mounted on the frame, a pitman connecting said wheels, a gear on the drive shaft, a second gear meshing with the gear on the drive shaft, a box cam in the second gear, a finger adapted to travel in the box cam, a link connecting said finger and one of said wheels whereby said wheels are oscillated in timed relation to the reciprocation of the head, guide-ways in which said head is slidably mounted, said guide-ways being slidably mounted in said frame, plungers extending from said guide-ways at the top and bottom thereof, and links connecting said plungers and said wheels whereby the guide-ways are moved from side to side in the frame, dogs pivotally secured to said guide-ways, said dogs being adapted to engage said frame, a link connecting said dogs, and straps on said head adapted to engage the inner ends of said dogs as said head is moved upwardly and downwardly thereby tripping said dogs to permit side movement of the guide-ways.

In testimony whereof, I affix my signature.

GEORGE Gr. 'LEMONS. 

